The MOON 681 is a high-performance integrated amplifier designed to deliver commanding power, exceptional transparency, and refined musicality for large-scale audiophile systems. Featuring a fully balanced circuit design and a massive power supply, the 681 provides effortless control over demanding loudspeakers, maintaining composure during complex musical passages. Its advanced amplifier topology ensures low noise, high resolution, and outstanding dynamic expression. Designed for listeners who demand both power and finesse, the MOON 681 delivers a wide, immersive soundstage and accurate tonal balance that elevates music reproduction to reference standards.